Method of and apparatus for producing electric oscillations.



R. 0. GALLETTI. METHOD OF AND APPARATUS FOR PRODUCING ELEGTRIG OSOILLATIONS.

APPLICATION FILED JAN. 27, 1908.

1,028,204; Patented June 4, 1912.

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I I I l l R. C. GALLETTI.

METHOD OF AND APPARATUS FOR PRODUCING ELECTRIC OSGILLATIONS. APPLICATION FILED 11111.27, 190B.

1 ,028,2()& 1 Patented June 4, 1912.

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R. C. GALLETTI. METHOD OF AND APPARATUS FOR PRODUCING ELECTRIC OSGILLATIONS. APPLICATION FILED JAN. 27,1908.

1,028,204, Patented June 4, 1912. v

3 SHEETS-SHEET 3.

' UNITED STATES PATENT orrioa.

ROBERTO CLEMENS GALLETTI, OF HOME, ITALY. 1

METHOD 0EA1\TD APP IARATUS F01} PRODUCING ELECTRIC OSCILLATIONS.

To all whom it may concern:

a subject of the King of Italy, residing at Rome, in Italy, have invented certain new and useful Improvements in Methods and Apparatus for Producing Electric Oscillations, of which the following is a full, clear, and exact description.

This invention relates to improvements in tric oscillations, the means employed also' enabling the oscillations to be produced continuously at very high potential.

A feature of this invention is that a main oscillating circuit has connected to it a number of auxiliary oscillating" circuits soarranged that when discharge takes place in one of the' auxiliary oscillating circuits, thls -d1scharg1ng circuit automatically sets upa discharge in. another of the auxiliary circuits as its own discharge dies out and so on throughout the series, the last auxiliary circuit so discharging acting onthe cira cuit first discharged to again set the series of auxiliary circuits discharging in cyclic order. discharge of the auxiliary circuits the main circuit above referred to ,as connects to cally one method actly similar.

each auxiliary circuit is thrown into co tinuous oscillation, as explained below.

Another feature of this invention is that the capacities in said auxiliary series of oscillating circuits can be arranged so that. they are not directly connected to the main oscillating. circuit referred to above and need not take part continuously in the oscillation of said circuit.

In the accompanying drawings, Figure .1 represents diagrammatically an. arrangement of oscillating circuits adapted for use .in carrying this invention into effect according to one modification. Fig. 1 is a dia ammatic view similar to Fig.1, illustratlng another way of carrying my inventioninto effect; Fig. 2 shows diagrammatiof carrying the. invention into effect when the capacities in the auxiliary series of oscillating circuits are not directly connected to the main oscillating circuit, only two of the auxiliary oscillating circuits belng shown, the others being ex- Referring to Fig. 1,01; pole of a dynamo Specification of Letters Patent.

methods and apparatus for producing elec In consequence of this successive: G

D isconnected through a large inductance I,

PatentedJune a, 1912.

Application filed January 27, 1908. Serial No. 412,902.

oscillate continuously. The

consisting preferably of copper wire wound oscillating circuit C is preferably closed without the formation of a spark or an arc. Besides the oscillating circuit C the figure also shows a series of'auxiliary oscillating circuits running from subscript l to n, in which n is equal to 4. One terminal of the condenser C of circuit C is connected as shown to a number of spheres S S S .Another series of Spheres S complementary to these latter is connected to the other pole of the dynamo D through large inductances I I, I these inductances bein employed to prevent direct communication between the two series of spheres and to protect the dynamo from oscillations Connecting each pair of spheres S 8 S5 S l S S respectively are oscillating circuits B B B each of these, circuits consisting of a ductance connected in series; for instance, auxiliary circuit B, comprises a spark gap S S and condenser F and inductance connected in series across the spark gap. Each of these auxiliary circuits B B B has one terminal connected to one terminal of the main oscillating circuit. C and its other terminal connected to one of the dynamo leads through the inductances I 1,, etc. With each of the auxiliary circuits above identified there is combined a solenoid marked H H H syntonized to the frequency of the auxiliary circuit to which one of its'terminals is connected, the other terminal of each. of these S ,S" S being free and placed near condenser and an insolenoids, marked the spheres'of that one of the auxiliary, cir- 1 cuits which it is desired to cause to discharge in sequence immediately following the auxiliary clrcuit-to which the other terminal ofthe solenoid is connected. I

' The initial discharge between. any one of thepairs ofspheres, constituting spark gaps of the several auxiliary circuits, may e brought about by the use of a high tension discharge from a terminal of an lnduction coil indicated at X in Fig. 1. This coil terminal may be placed adjacent to any one of the pairs'of auxiliary clrcuit spark gaps. The solenoids H H H connected as above described will each attain a very high potential -at their free extremities S'Q,

noids. The auxiliary circuits B B etc.,

will charge and discharge in an endless cycle without further necessity for the application of the discharge from the induction coil X which is used only to break down the di-electric between a single pair of the spheres S S S S etc., in the first instance. It is understood that the constants of the several auxiliary circuits will be so chosen as to permit of a suflicient charge to accumulate in each of their condensers from the dynamo source during the cyclic period to enable each of these auxiliary circuits in its turn to sustain the main circuit C in continuous oscillation.

The several auxiliary circuits, as above described, can be so arranged that the free electrode terminals of their solenoids, in

conjunction with the several spark gaps, will constitute a complete series, adapted to discharge in succession, or may dispose them in a straight line, as shown in, Figs. 1 and 1 and bring about the same result by a con nector S which,of course, would be dispensed with in a series located as first explained.

While I have specifically referred to sphere or ball spark gaps I do not wish to i be restricted to that particular agency for effecting a disruptive discharge. Many such devices are known in the art and my invention may be used irrespective of specific limitations in this respect,

It is obvious that instead of connecting the auxiliary oscillating circuits directly to the main oscillating circuits, they may be connected inductively, as shown in Fig. 1

The inductive connection is represented in said figure by the inductance L common to and the inductance L appertaining all .the auxiliary circuits B B. B

to all;

' main induced circuit C.

Referringto Fig. 2, one pole N of the dynamo is connected through an inductance I to the. main oscillating circuit {1; the oscillating circuit C is also connected as shown to a sphere S,. A sphere S opposite the sphere S, is connected through 211.111 t e dynamo or other source of potential. The condenser F of the oscillating circuit B is not, however, as previously described, connected directly to the oscillating circuit C but is connected through a high resistance R the condenser also being connected -to a sphere S" which is in such a position as to be within the path of the spark discharge S SE. A solenoid I I is connected to a sphere S in proximlty to the next means for discharging one oscillating circuit, not shown. As described withreference to Fig. 1, the oscillating circuit C is connected to a number of oscillating circuits corresponding to that just described in detail. Also, the terminal of the condenser of the circuit B is connected to the oscillating circuit C or else an'inter mediate terminal may be connected to earth. The terminals M and N may be those of a continuous current dynamo, the various circuits being separated by inductances consist-- ing of copper wire wound on iron cores.

What I claim is: 1. The combination of a closed oscillatory main circuit and a plurality of auxiliary oscillatory circuits connected thereto, and

means for charging and discharging the auxiliary circuits in orderly sequence from a direct current source.

2. The combination of circuit and a plurality of auxiliary oscillatory circuitsconnected thereto, and means for charging and discharging the auxiliary an oscillatory main circuits in orderly sequence from a "direct" current source.

3. The combination of a main oscillatory circuit and aplurality of auxiliary circuits adjacent to each other, means for charging the auxiliary circuits, means for discharging one of them, and means whereby the latter establishes a discharge in an adjacent auxiliary circuit.

4. The combination of a main oscillatory circuit and a plurality of auxiliary circuits,

means for charging the auxiliary circuits, of them, and means whereby the latter establishes a discharge in one of the other circuits.

5. The combination of a main oscillatory circuit, a number of auxiliary oscillatory circuits, a source of direct current, and impedance devices between the auxiliary circuits and the direct current source, substantially as described.

6. The combination of an oscillatory circuit and, a plurality of independent oscillatory circuits connected thereto, a common source of direct current, and impedance devices between such source and the independent oscillatory circuits.

7. The combinatlon of an oscillatory circuit and a plurality of independent oscillatory circuits connected thereto, a common source of direct current, impedance devices between such source and -the independent oscillatory circuits, and means for discharging these circuits in determinative order.

8. The combination of an oscillatory circuit and a number of separate oscillatory circuits, devices between such source and'the separate oscillatory circuits, and secondary oscil latory circuits connected to each of the latter.

a source of energization, reactance 9. The combination of an oscillatory cir- In testinuony whereof have signed my cuit and a number of separate oscillatory name to th sspeciiicatlon 1n the presence of circuits, 2, source of energizaticn, reactance WO SubSCI'lblng wltnesses.

devices between such source and the sep a- ROBERTO CLEMENS GALLETTI. 5 rate oscillatoryclrcults, and secondary oscll- Witnesses:

latory circuits lnterconnectlng these sepa- G. SERRA OASSON,

rate circuits. H D. JAMESON. 

